feat: add persisted manual pi backend mode controls

This commit is contained in:
William Valentin
2026-02-23 23:06:40 -08:00
parent 3e5e82c76e
commit 4188c68130
14 changed files with 360 additions and 10 deletions
+11 -1
View File
@@ -363,6 +363,15 @@ backends:
`pi_embedded` is intended for canary migration cohorts. In spike mode (`no_tools_mode: true`), Flynn keeps tool-oriented turns on native and only routes plain-text turns to Pi.
Runtime backend mode can be controlled live (persisted in `~/.local/share/flynn/preferences.json`):
- `/backend status` shows runtime mode and effective backend selection
- `/backend activate pi` forces `pi_embedded` globally
- `/backend deactivate pi` forces native for Pi-routed turns
- `/backend use config` resets to `backends.default`
This manual runtime mode control is the intended Pi activation/deactivation switch.
To evaluate canary performance from audit logs, run:
```bash
@@ -602,6 +611,7 @@ Notes:
| `/approve [id]` | Approve latest (or specific) pending gate |
| `/deny [id] [reason]` | Deny latest (or specific) pending gate |
| `/skill <list|search|install>` | In-chat skill discovery/install (`list`, `search <term>`, `install <registry-id>`) |
| `/backend <status\|activate pi\|deactivate pi\|use config>` | Show or control global runtime backend mode |
## Web UI Dashboard
@@ -637,7 +647,7 @@ pnpm tui:fs
| `/model` | Show all model tiers and which is active |
| `/model <tier>` | Switch active tier (`local`, `default`, `fast`, `complex`, or aliases `ollama`, `sonnet`, `haiku`, `opus`) |
| `/model <tier> <provider/model>` | Hot-swap a tier's provider and model at runtime |
| `/backend [provider]` | Show or switch local backend (`ollama`, `llamacpp`) |
| `/backend [provider]` | TUI-local command: show or switch local model backend (`ollama`, `llamacpp`) |
| `/login [provider]` | Authenticate with GitHub (OAuth device flow) |
| `/reset` | Clear history |
| `/status` | Show session info |
+1
View File
@@ -37,6 +37,7 @@ The gateway serialises agent work **per session**, not per WebSocket connection:
- Lane policy is configurable (`collect`, `followup`, `steer`, `steer_backlog`, `interrupt`) with per-channel and per-session overrides.
- Session-local overrides can be managed at runtime via `agent.send` commands: `/queue`, `/queue set ...`, `/queue reset`.
- Backend selection for a turn is server-side (`native` by default, optional external backends per config: `claude_code`, `opencode`, `codex`, `gemini`, `pi_embedded`) and does not change JSON-RPC method signatures.
- Runtime backend mode overrides are available via `agent.send` command fast-path: `/backend status`, `/backend activate pi`, `/backend deactivate pi`, `/backend use config`.
- Backend routing and fallback outcomes are emitted to audit logs (`backend.route`, `backend.success`, `backend.fallback`) for rollout evaluation; this telemetry is outside JSON-RPC response payloads.
This is implemented via a per-lane queue (`LaneQueue`) in the gateway server, and used by `agent.send` and `agent.cancel`.
+6
View File
@@ -28,6 +28,7 @@ flowchart LR
CA[ChannelAdapters]
GW[Gateway\nHTTP + WS JSON-RPC + Web UI]
RT[Routing\ncreateMessageRouter()]
PF[Preferences\n~/.local/share/flynn/preferences.json\nmodelTier + backendMode]
SM[SessionManager\nSQLite]
OR[AgentOrchestrator]
NA[NativeAgent\n(tool loop)]
@@ -55,6 +56,7 @@ flowchart LR
CG --> RT
CE --> RT
PF --> RT
CH --> CA
GW --> RT
@@ -96,6 +98,9 @@ ChannelAdapter -> ChannelRegistry
| v
| createMessageRouter()
| |
| +----> Runtime backend mode overrides
| (/backend status|activate pi|deactivate pi|use config)
| |
| v
| SessionManager
| |
@@ -134,6 +139,7 @@ Outbound Reply
Key files:
- Routing + per-session agent creation: `src/daemon/routing.ts`
- Runtime preference persistence (`modelTier`, `backendMode`): `src/preferences.ts`
- Orchestration: `src/backends/native/orchestrator.ts`
- Tool loop: `src/backends/native/agent.ts`
- External backend adapters: `src/backends/external.ts`, `src/backends/piEmbedded.ts`
@@ -11,6 +11,7 @@ If you only want the protocol surface, see `docs/api/PROTOCOL.md`.
- Agent work is queued per `sessionId` (FIFO), not per connection.
- Sessions persist in SQLite via `SessionManager` even if clients disconnect.
- Once dequeued, message routing may execute the native orchestrator path or an optional external backend path (`claude_code`, `opencode`, `codex`, `gemini`, `pi_embedded`) depending on agent/backend config.
- Runtime backend mode can be overridden manually via `/backend` command fast-path (`status`, `activate pi`, `deactivate pi`, `use config`) and is persisted in preferences.
- Backend routing outcomes are auditable via `backend.route` / `backend.success` / `backend.fallback`, which enables offline canary evaluation without changing gateway protocol methods.
## Component Map
@@ -19,6 +20,7 @@ If you only want the protocol surface, see `docs/api/PROTOCOL.md`.
flowchart LR
subgraph CFG[Config + Runtime Policy]
QP[server.queue policy\nmode/cap/overflow/overrides]
BM[backend runtime mode\nconfig_default|force_native|force_pi_embedded]
end
subgraph GW[Gateway Process]
@@ -37,6 +39,7 @@ flowchart LR
WS --> GS
QP --> GS
BM --> GS
GS --> LQ
GS --> SB
LQ --> AQ
+25 -1
View File
@@ -3,6 +3,29 @@
"updated_at": "2026-02-24",
"description": "Tracks the status of all Flynn plans and implementation phases",
"plans": {
"pi-embedded-manual-runtime-mode-control": {
"status": "completed",
"date": "2026-02-24",
"updated": "2026-02-24",
"summary": "Added persisted global runtime backend mode control for Pi rollout/deactivation via `/backend` command fast-path (`status`, `activate pi`, `deactivate pi`, `use config`). This keeps Flynn's configured routing as default (`config_default`) while allowing manual Pi activation/deactivation without automatic global rollback.",
"files_modified": [
"src/commands/types.ts",
"src/commands/builtin/index.ts",
"src/commands/builtin/index.test.ts",
"src/commands/index.ts",
"src/preferences.ts",
"src/preferences.test.ts",
"src/daemon/index.ts",
"src/daemon/routing.ts",
"src/daemon/routing.test.ts",
"README.md",
"docs/architecture/AGENT_DIAGRAM.md",
"docs/architecture/GATEWAY_SESSIONS_AND_QUEUE.md",
"docs/api/PROTOCOL.md",
"docs/plans/state.json"
],
"test_status": "pnpm test:run src/commands/builtin/index.test.ts src/preferences.test.ts src/daemon/routing.test.ts + pnpm typecheck passing"
},
"pi-embedded-backend-canary-evaluation-phase": {
"status": "completed",
"date": "2026-02-24",
@@ -6492,7 +6515,8 @@
"remaining_phases_completion": "Phase 1: 3/3 (100%) — context levels, command registry, memory structure. Phase 2: 3/3 (100%) — component registry, confidence routing, history index. Phase 3: 2/2 (100%) — adaptive memory/compaction, truthfulness/autonomy hardening",
"next_up": "Track OpenClaw evolution regularly for inspiration and feature ideas",
"pi_embedded_canary_spike": "completed — added optional pi_embedded backend adapter, canary-safe no-tools routing guard, backend success/fallback latency audit events, and docs/diagram updates while native remains default",
"pi_embedded_evaluation_phase": "completed — final decision rollback (applied in runtime config): Window A failed latency/fallback gates (p50 +259ms, p95 +5695ms, fallback 25%, categories: pi_module_interface/empty_assistant_text); Window B remained sample-insufficient; controlled probes verified guard coverage (pi_no_tools_mode/capability_query/attachments_present each hit once)"
"pi_embedded_evaluation_phase": "completed — final decision rollback (applied in runtime config): Window A failed latency/fallback gates (p50 +259ms, p95 +5695ms, fallback 25%, categories: pi_module_interface/empty_assistant_text); Window B remained sample-insufficient; controlled probes verified guard coverage (pi_no_tools_mode/capability_query/attachments_present each hit once)",
"pi_embedded_manual_mode": "completed — added persisted runtime `/backend` controls for manual Pi activation/deactivation (`status`, `activate pi`, `deactivate pi`, `use config`) while keeping config-driven default routing"
},
"soul_md_and_cron_create": {
"date": "2026-02-11",
+30 -1
View File
@@ -1,6 +1,6 @@
import { describe, it, expect, vi } from 'vitest';
import { createApproveCommand, createApprovalsCommand, createContextCommand, createCouncilCommand, createDenyCommand, createElevateCommand, createModelCommand, createQueueCommand, createResearchCommand, createSkillCommand, createStopCommand, createToolsCommand, createTransferCommand } from './index.js';
import { createApproveCommand, createApprovalsCommand, createBackendCommand, createContextCommand, createCouncilCommand, createDenyCommand, createElevateCommand, createModelCommand, createQueueCommand, createResearchCommand, createSkillCommand, createStopCommand, createToolsCommand, createTransferCommand } from './index.js';
describe('builtin /model command', () => {
it('passes through the full argument string', async () => {
@@ -341,3 +341,32 @@ describe('builtin /skill command', () => {
expect(result).toEqual({ handled: true, text: 'ok' });
});
});
describe('builtin /backend command', () => {
it('passes subcommand input to backendCommand service', async () => {
const cmd = createBackendCommand();
const backendCommand = vi.fn(() => 'Pi backend deactivated.');
const result = await cmd.execute(['deactivate', 'pi'], {
channel: 'test',
senderId: 'user',
sessionId: 's1',
rawInput: '/backend deactivate pi',
services: { backendCommand },
});
expect(backendCommand).toHaveBeenCalledWith('deactivate pi');
expect(result).toEqual({ handled: true, text: 'Pi backend deactivated.' });
});
it('returns not-available when service is missing', async () => {
const cmd = createBackendCommand();
const result = await cmd.execute([], {
channel: 'test',
senderId: 'user',
sessionId: 's1',
rawInput: '/backend',
services: {},
});
expect(result).toEqual({ handled: true, text: 'Backend command is not available in this session.' });
});
});
+17
View File
@@ -356,6 +356,22 @@ export function createSkillCommand(): CommandDefinition {
};
}
export function createBackendCommand(): CommandDefinition {
return {
name: 'backend',
description: 'Inspect or control runtime backend mode (status, activate pi, deactivate pi)',
execute: async (args, ctx) => {
if (!ctx.services?.backendCommand) {
return notAvailable('Backend command');
}
return {
handled: true,
text: await ctx.services.backendCommand(args.join(' ').trim()),
};
},
};
}
export function registerBuiltinCommands(registry: CommandRegistry): void {
registry.register(createHelpCommand(registry));
registry.register(createStatusCommand());
@@ -375,4 +391,5 @@ export function registerBuiltinCommands(registry: CommandRegistry): void {
registry.register(createApproveCommand());
registry.register(createDenyCommand());
registry.register(createSkillCommand());
registry.register(createBackendCommand());
}
+1
View File
@@ -16,5 +16,6 @@ export {
createApproveCommand,
createDenyCommand,
createSkillCommand,
createBackendCommand,
registerBuiltinCommands,
} from './builtin/index.js';
+1
View File
@@ -42,4 +42,5 @@ export interface CommandServices {
approvePending?: (input: string) => Promise<string> | string;
denyPending?: (input: string) => Promise<string> | string;
skillCommand?: (input: string) => Promise<string> | string;
backendCommand?: (input: string) => Promise<string> | string;
}
+6
View File
@@ -231,6 +231,7 @@ export async function startDaemon(config: Config, options?: StartDaemonOptions):
// Restore persisted model tier
const { loadPreferences, savePreference } = await import('../preferences.js');
const prefs = loadPreferences(dataDir);
let backendMode = prefs.backendMode ?? 'config_default';
if (prefs.modelTier) {
modelRouter.setTier(prefs.modelTier as import('../models/router.js').ModelTier);
}
@@ -254,6 +255,11 @@ export async function startDaemon(config: Config, options?: StartDaemonOptions):
const messageRouter = createMessageRouter({
sessionManager, modelRouter, systemPrompt, toolRegistry, toolExecutor,
config, memoryStore, agentConfigRegistry, agentRouter, sandboxManager, commandRegistry, hookEngine, intentRegistry, routingPolicy, skillRegistry, skillInstaller,
getBackendMode: () => backendMode,
setBackendMode: (mode) => {
backendMode = mode;
savePreference(dataDir, 'backendMode', mode);
},
...createConfiguredExternalBackends(config),
});
channelRegistry.setMessageHandler(messageRouter.handler);
+112
View File
@@ -1424,6 +1424,118 @@ describe('daemon external backend integration', () => {
expect(processSpy).toHaveBeenCalled();
expect(reply).toHaveBeenCalledWith(expect.objectContaining({ text: 'native guarded response' }));
});
it('supports manual global pi deactivation and re-activation via /backend command', async () => {
const processSpy = vi.spyOn(AgentOrchestrator.prototype, 'process')
.mockResolvedValue('native fallback response');
const history: Array<{ role: 'user' | 'assistant'; content: string }> = [];
const session = {
id: 'telegram:pi-manual-toggle',
addMessage: vi.fn((msg: { role: 'user' | 'assistant'; content: string }) => {
history.push(msg);
return msg;
}),
getHistory: vi.fn(() => [...history]),
clear: vi.fn(),
replaceHistory: vi.fn(),
getConfig: vi.fn(() => undefined),
setConfig: vi.fn(),
deleteConfig: vi.fn(),
};
const commandRegistry = new CommandRegistry();
registerBuiltinCommands(commandRegistry);
const piBackend = {
name: 'pi_embedded',
process: vi.fn(async () => 'pi embedded response'),
};
let backendMode: 'config_default' | 'force_native' | 'force_pi_embedded' = 'force_pi_embedded';
const router = createMessageRouter({
sessionManager: { getSession: vi.fn(() => session) } as unknown as MessageRouterDeps['sessionManager'],
modelRouter: {
getAvailableTiers: () => ['fast', 'default', 'complex', 'local'],
getAllLabels: () => ({ fast: 'fast', default: 'default', complex: 'complex', local: 'local' }),
getLabel: (tier: string) => tier,
} as unknown as MessageRouterDeps['modelRouter'],
systemPrompt: 'test prompt',
toolRegistry: {
clone() { return this; },
register: vi.fn(),
} as unknown as MessageRouterDeps['toolRegistry'],
toolExecutor: {} as unknown as MessageRouterDeps['toolExecutor'],
config: {
agents: {
primary_tier: 'default',
delegation: {
compaction: 'fast',
memory_extraction: 'fast',
classification: 'fast',
tool_summarisation: 'fast',
complex_reasoning: 'complex',
},
max_delegation_depth: 3,
max_iterations: 10,
},
backends: {
pi_embedded: { no_tools_mode: false },
},
compaction: { enabled: false },
models: { default: { provider: 'anthropic', model: 'claude' } },
} as unknown as MessageRouterDeps['config'],
commandRegistry,
externalBackends: { pi_embedded: piBackend } as unknown as MessageRouterDeps['externalBackends'],
defaultName: 'pi_embedded',
getBackendMode: () => backendMode,
setBackendMode: (mode) => {
backendMode = mode;
},
});
const reply = vi.fn(async (_message: OutboundMessage) => {});
await router.handler({
id: 'm-backend-deactivate',
channel: 'telegram',
senderId: 'pi-manual-toggle',
text: '/backend deactivate pi',
timestamp: Date.now(),
metadata: { isCommand: true, command: 'backend', commandArgs: 'deactivate pi' },
} as MessageRouterInput, reply);
await router.handler({
id: 'm-after-deactivate',
channel: 'telegram',
senderId: 'pi-manual-toggle',
text: 'hello after deactivate',
timestamp: Date.now(),
} as MessageRouterInput, reply);
expect(backendMode).toBe('force_native');
expect(piBackend.process).not.toHaveBeenCalled();
expect(processSpy).toHaveBeenCalled();
await router.handler({
id: 'm-backend-activate',
channel: 'telegram',
senderId: 'pi-manual-toggle',
text: '/backend activate pi',
timestamp: Date.now(),
metadata: { isCommand: true, command: 'backend', commandArgs: 'activate pi' },
} as MessageRouterInput, reply);
await router.handler({
id: 'm-after-activate',
channel: 'telegram',
senderId: 'pi-manual-toggle',
text: 'hello after activate',
timestamp: Date.now(),
} as MessageRouterInput, reply);
expect(backendMode).toBe('force_pi_embedded');
expect(piBackend.process).toHaveBeenCalledTimes(1);
});
});
describe('daemon audio routing integration', () => {
+115 -6
View File
@@ -31,6 +31,8 @@ import { dirname, resolve } from 'path';
import { loadCouncilScaffoldSafe } from '../councils/scaffold.js';
import { buildCouncilPreflightReport, shouldRunCouncilPreflight } from '../councils/preflight.js';
export type BackendRuntimeMode = 'config_default' | 'force_native' | 'force_pi_embedded';
function buildProviderConfigMap(config: Config): Partial<Record<ModelProvider, ModelConfig>> {
const providerConfigs: Partial<Record<ModelProvider, ModelConfig>> = {};
const modelConfigs: ModelConfig[] = [
@@ -333,6 +335,8 @@ export function createMessageRouter(deps: {
skillInstaller?: SkillInstaller;
externalBackends?: Partial<Record<ExternalBackendName, ExternalBackend>>;
defaultName?: ExternalBackendName;
getBackendMode?: () => BackendRuntimeMode;
setBackendMode?: (mode: BackendRuntimeMode) => void;
}): {
handler: (msg: InboundMessage, reply: (response: OutboundMessage) => Promise<void>) => Promise<void>;
agents: Map<string, { orchestrator: AgentOrchestrator; collector: OutboundAttachmentCollector }>;
@@ -342,6 +346,59 @@ export function createMessageRouter(deps: {
const talkModeUntil = new Map<string, number>();
const activeRuns = new Map<string, AgentOrchestrator>();
function getBackendMode(): BackendRuntimeMode {
return deps.getBackendMode?.() ?? 'config_default';
}
function getConfiguredOrFallbackDefaultBackend(): ExternalBackendName | 'native' {
return deps.defaultName ?? 'native';
}
function getEffectiveDefaultBackend(): ExternalBackendName | 'native' {
const mode = getBackendMode();
if (mode === 'force_native') {
return 'native';
}
if (mode === 'force_pi_embedded') {
return 'pi_embedded';
}
return getConfiguredOrFallbackDefaultBackend();
}
function resolveRoutableBackend(
requestedBackend: ExternalBackendName | 'native' | undefined,
): ExternalBackendName | 'native' {
if (!requestedBackend || requestedBackend === 'native') {
return 'native';
}
return deps.externalBackends?.[requestedBackend] ? requestedBackend : 'native';
}
function applyBackendModeOverride(
requestedBackend: ExternalBackendName | 'native' | undefined,
): ExternalBackendName | 'native' | undefined {
if (requestedBackend !== 'pi_embedded') {
return requestedBackend;
}
if (getBackendMode() === 'force_native') {
return 'native';
}
return requestedBackend;
}
function formatBackendStatusLine(activeTier: string): string {
const mode = getBackendMode();
const configuredDefault = getConfiguredOrFallbackDefaultBackend();
const effectiveDefault = resolveRoutableBackend(getEffectiveDefaultBackend());
const availableExternal = Object.keys(deps.externalBackends ?? {}).sort().join(', ') || 'none';
return [
`Flynn is running. Active model tier: ${activeTier}. Backend: ${effectiveDefault}`,
`Backend mode: ${mode}`,
`Configured default: ${configuredDefault}`,
`Available external backends: ${availableExternal}`,
].join('\n');
}
async function maybeBuildTtsAttachment(responseText: string, channel: string) {
if (!isTtsEnabledForChannel(deps.config, channel)) {
return undefined;
@@ -759,11 +816,7 @@ export function createMessageRouter(deps: {
rawInput: commandInput,
services: {
getStatus: () => {
const requestedBackend = agentConfig?.backend ?? deps.defaultName;
const backend = requestedBackend && requestedBackend !== 'native' && deps.externalBackends?.[requestedBackend]
? requestedBackend
: 'native';
return `Flynn is running. Active model tier: ${agent.getModelTier()}. Backend: ${backend}`;
return formatBackendStatusLine(agent.getModelTier());
},
getTools: () => {
const names = new Set(deps.toolRegistry.list().map((tool: Tool) => tool.name));
@@ -1143,6 +1196,62 @@ export function createMessageRouter(deps: {
return `Session transferred to ${destinationLabel}`;
},
backendCommand: (inputRaw: string) => {
const normalized = inputRaw.trim().toLowerCase();
if (!normalized || normalized === 'status' || normalized === 'show') {
return formatBackendStatusLine(agent.getModelTier());
}
if (!deps.setBackendMode) {
return 'Backend mode control is not available in this runtime.';
}
if (
normalized === 'activate pi'
|| normalized === 'activate pi_embedded'
|| normalized === 'activate pi-embedded'
) {
deps.setBackendMode('force_pi_embedded');
return [
'Pi embedded backend activated globally.',
formatBackendStatusLine(agent.getModelTier()),
].join('\n\n');
}
if (
normalized === 'deactivate pi'
|| normalized === 'deactivate pi_embedded'
|| normalized === 'deactivate pi-embedded'
) {
deps.setBackendMode('force_native');
return [
'Pi embedded backend deactivated globally. Native is now forced for Pi-routed turns.',
formatBackendStatusLine(agent.getModelTier()),
].join('\n\n');
}
if (
normalized === 'use config'
|| normalized === 'reset'
|| normalized === 'auto'
|| normalized === 'config'
) {
deps.setBackendMode('config_default');
return [
'Backend mode reset to config default.',
formatBackendStatusLine(agent.getModelTier()),
].join('\n\n');
}
return [
'Usage:',
'/backend status',
'/backend activate pi',
'/backend deactivate pi',
'/backend use config',
].join('\n');
},
getApprovals: () => {
if (!deps.hookEngine) {
return 'Approval gates are not enabled in this runtime.';
@@ -1409,7 +1518,7 @@ export function createMessageRouter(deps: {
// If native audio IS supported, we pass attachments through unchanged —
// buildUserMessage() in the agent will create native audio content parts
const requestedBackend = agentConfig?.backend ?? deps.defaultName;
const requestedBackend = applyBackendModeOverride(agentConfig?.backend ?? getEffectiveDefaultBackend());
const forceNativeForCapabilityQuery = shouldForceNativeForCapabilityQuery(messageText);
const hasAttachmentsForExternalBackend = Boolean(attachments && attachments.length > 0);
const selectedBackend = requestedBackend && requestedBackend !== 'native'
+16
View File
@@ -30,6 +30,12 @@ describe('preferences', () => {
expect(prefs.modelTier).toBe('local');
});
it('round-trips backend mode preference', () => {
savePreference(dataDir, 'backendMode', 'force_native');
const prefs = loadPreferences(dataDir);
expect(prefs.backendMode).toBe('force_native');
});
it('merges preferences without overwriting other keys', () => {
savePreference(dataDir, 'modelTier', 'fast');
savePreference(dataDir, 'otherKey', 42);
@@ -43,4 +49,14 @@ describe('preferences', () => {
savePreference(nested, 'modelTier', 'default');
expect(loadPreferences(nested).modelTier).toBe('default');
});
it('ignores invalid backendMode values in stored preferences', () => {
writeFileSync(
resolve(dataDir, 'preferences.json'),
JSON.stringify({ modelTier: 'default', backendMode: 'invalid-mode' }),
);
const prefs = loadPreferences(dataDir);
expect(prefs.modelTier).toBe('default');
expect(prefs.backendMode).toBeUndefined();
});
});
+16 -1
View File
@@ -3,13 +3,28 @@ import { dirname, resolve } from 'path';
export interface Preferences {
modelTier?: string;
backendMode?: BackendModePreference;
}
export type BackendModePreference = 'config_default' | 'force_native' | 'force_pi_embedded';
function isBackendModePreference(value: unknown): value is BackendModePreference {
return value === 'config_default' || value === 'force_native' || value === 'force_pi_embedded';
}
export function loadPreferences(dataDir: string): Preferences {
const filePath = resolve(dataDir, 'preferences.json');
try {
const raw = readFileSync(filePath, 'utf-8');
return JSON.parse(raw) as Preferences;
const parsed = JSON.parse(raw) as Record<string, unknown>;
const prefs: Preferences = {};
if (typeof parsed.modelTier === 'string') {
prefs.modelTier = parsed.modelTier;
}
if (isBackendModePreference(parsed.backendMode)) {
prefs.backendMode = parsed.backendMode;
}
return prefs;
} catch {
return {};
}